I would think so too. To be fair to the T-129, it is capable of anti-armour operations as well, but it doesn't have as much payload as the Mi-28NE (8 vs. 16 ATGM). But it would still be better than the AH-1F/S. So, there's overlap, though the Army's decision would depend on how much it values having the T-129 up north.
If the Army keeps its requirement open for some time longer, then the Denel Aviation Rooivalk Mk2 might become a factor too. It appears that Denel has written the Rooivalk's development cost down, meaning, the development overhead won't be charged to users moving forward. The cost of the helicopter will be the cost of its parts and its upgrades, which are in the avionics, weapons, and some internal components, but otherwise marginal.
The Rooivalk Mk2 will retain the Rooivalk's Malika turboshaft, which is also the turboshaft engine of the Super Puma, which is optimized for hot-and-high operations. The Pakistani MoDP also expressed interest in Romania's Puma-line, which will be revived to manufacture the Super Puma exclusively. So, there's possibility of engine and other parts commonality.
I admit, I am a Denel/South Africa fan, but that is entirely because that country offers transfer-of-technology benefits up front in almost all of its dealings.